Alhambra from Albaicin Quarter, Granada, Spain — The fortress-palaces of the Alhambra, seen from across the Darro River gorge with the snowy Sierra Nevada behind them, create one of the most celebrated silhouettes in European architecture. Washington Irving wrote his 'Tales of the Alhambra' while living in the then-ruined palace in 1829, igniting the Romantic world's fascination with Moorish Spain.
© Holger Uwe Schmitt, CC BY-SA 4.0, via Wikimedia Commons